"""
这是注释
"""

# 这是单行注释
print("hello world")

score = 80

if score >= 60:
  print('good')
elif score >= 80:
  print('very good')
else:
  print('oh no')

score = 90
text = 'good' if score >=60 else 'not good'
print(text)

i = 0
while i < 10:
  print(i)
  i += 1